无功补偿计算方法

补偿容量的确定补偿容量的确定可以根据负荷的最大功率、补偿前的功率因数及要求补偿后达到的功率因数，用下式计算确定：Q=a*P*(tan©i一tan©2)式中：Q—所需补偿的总无功功率，kvar;a—平均负荷系数，取0.7-0.8;P用户最大负荷，kW;tan©1一补偿前平均功率因数角tan©2—补偿后平均功率因数角或Q=a*P*qq—补偿率，kvar/kW（可从附表中查取）附表：每kW负荷所需无功补偿率值查取表0.800.810.820.830.840.850.860.870.880.890.900.910.920.930.940.950.960.500.9811.0081.0351.0601.0861.1171.1381.1661.1921.2191.2461.2761.3051.3381.361.4041.4420.510.9390.9660.9331.0181.0441.0701.1061.1341.1601.1871.2141.2441.2731.3061.33A1.3721.4100.520.8900.9170.9450.9690.9951.0211.0471.0751.1011.1281.1551.1851.2171.2471.2771.3131.3510.530.8190.8760.9030.9280.9540.9801.0061.0341.0601.0871.1141.1441.1731.1201.20A1.2361.2720.540.8080.8350.8620.8870.9130.9390.9650.9931.0191.0461.0751.1031.1331.1651.19R1.2311.2690.550.7660.7930.8200.8150.8710.897().09230.9510.9771.0041.0311.0611.0901.1231.151.1891.2270.560.7280.7550.7820.8070.8290.8590.8850.9130.9390.9660.9911.0231.0521.0851.1151.1511.1890.570.6910.7180.7450.7700.7960.8220.8460.8760.9020.9290.9560.9861.0151.0481.07ft1.1141.5200.580.6550.6820.7090.7340.7600.7860.8120.8400.8660.8930.9200.9500.9791.0121.0491.0781.1160.590.6180.6450.6720.6970.7230.7490.7750.8030.8290.8560.8830.9130.9420.9751.00F1.0411.079COS©1COS©20.60 U・583U・610U・637 U・662U・6880.714U./4UU・768U./94U・821U・848U・878U・905U・94U° 1.0061・044U・6IU・549U・576U・603U・628U・654U・680U・706U・734U・760U・787U・841U.844U・873U・906AU・9721.U1U0.620.5150.5470.5600.5940.6200.6400.6720.7000.7260.7530.7800.8100.8390.8720.9020.9380.9740.630.4810.5080.5350.5600.5860.6120.6380.6660.6920.7190.7460.7760.8050.8380.860.9040.9420.640.4500.4770.5040.5290.5550.5810.6070.6350.6610.6880.7150.7450.7740.8070.8370.8730.911COS©20.800.810.820.830.840.850.860.870.880.890.900.910.920.930.940.950.960.650.4170.4440.4710.4960.5220.5480.5740.6020.6280.6550.6820.7120.7410.7740.8040.8400.8780.660.3860.4150.4420.4670.4930.5190.5450.5730.5990.6260.6540.6830.7120.7450.77F0.8110.8490.670.3570.3840.4110.4360.4620.4880.5140.5420.5660.5950.6220.6520.6810.7140.7440.7800.8180.680.3270.3540.3810.4060.4320.4580.4840.5120.5380.5650.5940.6220.6510.6840.7170.7500.7880.690.2970.3240.3510.3760.4020.4280.4540.4820.5080.5350.5620.5920.6210.6540.6830.7200.7580.700.2700.2970.3230.3490.3750.4010.4270.4550.4810.5080.5350.5650.5940.6270.6570.6930.7310.710.2410.2680.2950.3200.3460.3720.3980.4260.4520.4790.5060.5360.5650.5980.62ft0.6640.7200.720.2120.2390.2660.2910.3170.3430.3710.3970.4250.4500.4770.5070.5360.5690.59Q0.6350.6730.730.1850.2120.2390.2640.2900.3160.3420.3700.3960.4230.4500.4800.5090.5420.5790.6080.6460.740.1570.1840.2110.2360.2620.2880.3150.3420.3680.3950.4250.452)0.4810.5140.5460.5800.6180.750.1310.1580.1850.2100.2360.2620.2880.3160.3420.3690.3960.4260.4550.4880.51a0.5540.5920.760.1030.1300.1570.1820.2080.2340.2600.2880.3160.3410.3680.3980.4270.4600.4990.5260.5630.770.0780.1050.1320.1570.1830.2090.2350.2630.2890.3160.3430.373)0.4020.4350.46F0.5010.5390.780.0520.0790.1060.1310.1570.1830.2090.2370.2630.2900.3170.3470.3760.4090.43Q0.4750.5130.790.0240.0510.0780.1030.1290.1550.1810.2090.2350.2620.2890.3190.3480.3810.410.4470.4850.800.0260.0520.0780.1040.1300.1570.1830.2100.2380.2660.2940.3260.3550.3870.4210.4580.810.0260.0520.0780.1040.1310.1570.1800.2120.2400.2680.2980.3290.3610.3950.4320.820.0260.0520.0780.1040.1310.1580.1860.2130.2420.2720.3030.33q0.3690.4060.830.0260.0520.0